Thermographic recording material

Details Thermographic recording material Thermographic recording material

1975-04-29

1976-06-22

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Weight per unit area specified

250317, 250330, 282 275, 428342, 428420, 428480, 428537, B32B 500

Patent

active

039652823

ABSTRACT:
A thermographic recording process in which a dye is produced by bringing image-wise into reactive contact with the aid of heat a dye precursor compound and a compound with acid reaction corresponding to the following general formula: ##EQU1## wherein : Z represents the necessary atoms to close an unsubstituted benzene nucleus, a halogen-substituted benzene nucleus or a nitro-substituted benzene nucleus, and

REFERENCES:
patent: 2770534 (1956-11-01), Marx
patent: 3751286 (1973-08-01), Newman
patent: 3767449 (1973-10-01), Hayashi et al.
patent: 3843383 (1974-10-01), Ishige et al.
patent: 3856553 (1974-12-01), Hayashi et al.
patent: 3864146 (1975-02-01), Oda et a.
patent: 3896255 (1975-07-01), Kato et al.

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